JP2537341Y2 - Building ceiling joist fastening structure and joist receiving bracket - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention relates to a case where a ceiling joist is fastened to an end joist of an upper floor of a building in a general house.
The present invention relates to a building ceiling joist fastening structure and a joist receiving bracket for fastening by making a step between a floor joist lower surface and a ceiling joist lower surface.

[0002]

2. Description of the Related Art Conventionally, in an upper floor of a building in a general house as shown in FIG. 2, there are a joist 1 supporting an upper floor plywood 6, and a floor joist 3 fastened to the joist 1. The ceiling joist 4, which is the foundation for mounting the lower floor ceiling, was fastened to the end joist 1. Then, as shown in FIG. 5, a notch 17 is provided by processing the end of the ceiling joist 4, and the notch-side end face of the ceiling joist 4 is supplemented to the side of the end joist 1 and the upper edge of the head joint 2. To the end joist 1 using the fastening hardware 16.
The ceiling joist 4 was fastened. With the above configuration, even when a height difference L1 is generated between the lower surface of the floor joist 3 and the lower surface of the ceiling joist 4 and the lower floor ceiling plate is fastened to the lower surface of the ceiling joist 4, the vibration of the upper floor plywood 6 is reduced. The effect is not directly transmitted from the floor joist 3 to the lower ceiling panel. Alternatively, after the notch 17 is provided in the ceiling joist 4, the ceiling joist 4 is fastened directly to the end joist 1 by a nail or the like without using the fastening hardware 16.

[0003]

[Problem to be Solved by the Invention] However, in such a conventional ceiling joist fastening structure, it is necessary to cut out each ceiling joist at the building construction site to provide a cutout portion. There was a drawback that the properties were very poor.

[0004] In addition, at the building construction site, there is often an error in the end joist interval at which both ends of the ceiling joist are fastened. It is necessary to perform the notch processing according to the end joist spacing individually at the site, and there is a disadvantage that workability is extremely poor.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem at the time of a conventional ceiling joist fastening, and is mounted on a supplementary head joint upper surface of an upper floor of a building. In a building ceiling joist fastening structure for fastening a ceiling joist to the end joist, a metal body having a U-shaped cross section including a bottom plate and both horizontal plates, and a notch provided below one end of the metal body. And a joist receiving metal fitting comprising a fastening plate provided in an outwardly expanding shape at each of the ends of the metal fitting main body located above the notch portion, wherein the notch portion is associated with a supplemental head connecting upper edge portion. The fastening plate is fastened in abutting manner to the end joist, and the end of the ceiling joist is accommodated and fastened inside the metal fitting body. Things.

[0006]

Next, an embodiment of the present invention will be described. FIG.
1 is a perspective view of the whole building using the building ceiling joist fastening structure provided by the present invention, FIG. 1 is a perspective view of a main part of the ceiling joist fastening structure shown in FIG. 2, and FIG. 3 is a ceiling joist fastening structure shown in FIG. FIG. 4 is a perspective view of a joist receiving bracket provided by the present invention. In each figure, 1 is the end joist, 2 is the supplemental head tie, 3
Indicates a floor joist, 4 indicates a ceiling joist, and 5 indicates a joist receiving bracket.

In FIG. 2, a floor joist 3 is fastened to an end joist 1 supporting a floor plywood 6 of an upper floor B of a building A and a supplemental head joint 2, and the end joist 1 and the supplemental head joint 2 are connected to the end joist 1 and the supplementary head joint 2. A ceiling floor joist 4 supporting the lower floor ceiling 20 is fastened by a joist receiving bracket 5.

First, the joist receiving bracket 5 provided by the present invention in FIG. 4 will be described. This joist receiving bracket 5
A bracket main body 11 having a U-shaped cross section composed of a bottom plate and both horizontal plates and accommodating an end of the ceiling joist 4, and a lower end of one end of the bracket main body 11 formed on a supplementary head joint 2. A hook-shaped notch 9 that engages with the edge, and a fastening plate that is provided in an outwardly expanding shape at each of the ends of the metal fitting body 11 on the side of the notch 9 and fastened to the end joist 1 in an abutting manner. And 10.

The fastening plate 10 provided on the metal fitting body 11
And the end face of the metal fitting body 11 is substantially at right angles, and the lower end face 10a of the fastening plate 10 and the horizontal plane 9a of the notch 9 are flush. The fastening plate 10 includes a joist receiving bracket 5.
A nail hole 12 for fastening the joist 1 to the end joist 1, and a nail hole 13 for fastening the joist receiving bracket 5 to the ceiling joist 4 are provided on both side plates of the metal fitting body 11. A nail is used for the fastening, but a screw or a screw may be used instead.

Next, a description will be given of a structure for fastening a ceiling joist provided by the present invention. In FIG. 1, a notch 9 provided below one end of the metal fitting body 11 engages with the upper edge of the supplementary head tie 2, and is formed at an end of the metal fitting body 11 located above the notch 9. The provided fastening plate 10 is fastened in contact with the end joist 1, and the ceiling joist 4 is provided inside the metal fitting body 11.
Is placed and fastened. The same structure is applied to the other end face of the ceiling joist 4 not shown.

The lower surface of the floor joist 3 is fastened to the end joist 1 at the same level as the upper edge of the supplemental head joint 2 and, in this state, the lower surface of the floor joist 3 and the lower surface of the ceiling joist 4 are leveled. Difference L
One. Further, the height difference L1 is larger than the vibration amplitude generated on the lower surface of the floor joist 3 when the upper floor plywood 6 is fastened to the upper surface of the floor joist 3 and vibration occurs on the plywood. In other words, even if vibration occurs on the lower surface of the floor joist 3 due to the vibration occurring on the plywood, the vibration is not directly transmitted to the ceiling joist 4.

In FIG. 3, the lower end surface 10a of the fastening plate 10 is in contact with the upper surface of the supplemental head tie 2 on the mounting, and the horizontal surface 9a of the notch is also in contact with the upper surface of the supplemental head tie 2 on the mounting. . A fastening plate 10 of a joist receiving bracket 5 is fastened to a side surface of the end joist 1 by a nail 7 in a contact state, and a ceiling joist 4 is provided inside a U-shaped bracket main body 11 of the joist receiving bracket 5.
And the end surface 14 of the ceiling joist 4 is fastened by the nail 8 within the range of the dimension L3 between the fastening plate 10 and the nail 8. Further, the position of the ceiling joist 4 between the end joists in this fastening structure is the same as long as the position of the end face 14 of the ceiling joist 4 is within the range of the dimension L3.

[0013]

[Effect of the Invention] The joist receiving bracket used in the present invention has a notch portion corresponding to a height difference to be formed on the lower surface of the floor joist and the lower surface of the ceiling joist. The provision of the ceiling floor joist fastening structure has an effect that the notch processing conventionally performed on individual ceiling joists is unnecessary, and the work on site can be extremely labor-saving.

The above-mentioned joist receiving bracket has a shape provided with a notch.
This eliminates the necessity of notching the ceiling joists, which has been conventionally performed on site, and has the effect of greatly reducing labor required for on-site construction work.

The ceiling joist is attached to the fastening plate by placing the horizontal plane of the notch of the joist receiving bracket and the lower end surface of the fastening plate in a substantially right angle and flush with each other and in contact with the upper surface of the supplementary head tie. There is no hindrance in strength because it is supported by the bracket and the metal fitting body.

[Brief description of the drawings]

FIG. 1 is a perspective view of a ceiling joist fastening portion of a building ceiling joist fastening structure according to the present invention.

FIG. 2 is a perspective view of the building according to the present invention;

FIG. 3 is a cross-sectional view of the ceiling joist fastening portion of the building ceiling joist fastening structure according to the present invention.

FIG. 4 is a perspective view of the joist receiving bracket according to the present invention.

FIG. 5 is a perspective view of a ceiling joist fastening portion according to a conventional building ceiling joist fastening structure.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 End joist 2 Supplementary head tie 3 Floor joist 4 Ceiling joist 5 Joist receiving bracket 9 Notch 10 Fastening plate 11 Metal fitting body

Claims (4)

(57) [Scope of request for utility model registration] In a building ceiling joist fastening structure for fastening a ceiling joist to an end joist mounted on a supplementary head joint upper surface of an upper floor of a building, a bracket body having a U-shaped cross section including a bottom plate and both horizontal plates is provided. And a notch portion provided below one end of the metal fitting body and a fastening plate provided with a fastening plate provided in an outwardly expanding shape at each of the metal fitting body ends located above the notch portion. Wherein the notch engages the supplemental head tie upper edge, the fastening plate is fastened abuttingly to the end joist, and the end of the ceiling joist is housed inside the metal fitting body. The building ceiling joist fastening structure, which is fastened and fastened. 2. A joist receiving metal fitting wherein a fastening plate provided on the metal fitting body is substantially perpendicular to the metal fitting body, and a lower end surface of the metal fastening plate and a horizontal surface of a notch portion are flush with each other. 2. The building ceiling joist fastening structure according to claim 1, wherein a lower end surface of the fastening plate and a horizontal surface of the cutout portion are placed in contact with a supplementary head joint upper surface in a placement state. 3. A joist receiving bracket used for fastening a ceiling joist to an end joist attached to a supplementary head joint on the upper floor of an upper floor of a building, wherein a cross section comprising a bottom plate and both horizontal plates has an upward U-shape. A metal fitting body for receiving the end of the ceiling joist, a hook-shaped notch formed below one end of the metal fitting body and engaging with the upper edge of the supplementary head tie, and this notch And a fastening plate which is provided on each of the ends of the side of the main body in an outwardly expanding shape and is fastened in an abutting manner to a side portion of the end joist. 4. The fastener according to claim 3, wherein the fastening plate provided on the fitting body is substantially perpendicular to the fitting body, and the lower end face of the fastening plate and the horizontal plane of the notch are flush with each other. Joist receiving bracket.